html,
body {
    height: 100%;
}

body {
    background-size: 100% 100%;
    background-image: url(/GQT/public/static/image/index/background.jpg);
    background-repeat:no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sign-box {
    display: flex;
    justify-content: center;
    width: 100%;
}

.input-group span {
    position: unset;
}

.form-signin {
    background-color: rgba(185, 216, 206, 0.3);
    top: -35px;
}

.input-Prompt {
    line-height: 47px;
}

#user-name,#password,#sign-buton{
    background-color: rgba(185, 216, 206, 0.3);
    letter-spacing: 2px;
}

#sign-buton{
    letter-spacing: 20xpx;
}
h1{
    letter-spacing: 3px;
    font-family: '幼圆',sans-serif;
}
button{
    margin-top:8px;
}